Fyi, Amazon has a secondary etf of $400 in addition to the att etf if certain changes are made within 181 days. Please read the terms carefully

" Instant Discount Policy
When you purchase your device with service from AmazonWireless.com, we automatically pass along an instant discount based on a commission paid to AmazonWireless by your wireless service carrier. The commission depends upon your continued service, and if you do not maintain your service for 181 days from the service activation date, AmazonWireless must return the commission to the carrier. Thus, this discount has been provided to you in good faith based on your agreement to (a) activate a new or extend an existing line of service for the device(s) with the carrier for two years, (b) maintain this line of service in good standing, and (c) not alter the line of service type other than adding an additional line of service to an individual account for at least 181 consecutive days.
The following are some scenarios where we may determine that you have not maintained your service and have not met the requirements listed above:
If your device with the carrier is not activated per Amazon's activation instructions within 14 days
If your service is canceled/disconnected before 181 days and you do not return the device(s) to Amazon
If a new individual or new family account is merged with or replaces a pre-existing account
If you transfer this equipment to another carrier's service or to another line in your family account and deactivate the line that Amazon established for your device
By accepting this Instant Discount Policy, you agree to repay $400 per smart phone or tablet and $200 per other device if you do not maintain your carrier service for 181 consecutive days from the service activation date. You also authorize us to collect that amount using any credit card we have on record for you. Amazon can periodically check your account status with the carrier to confirm your line of service is active and in good standing and thereby confirm you are in compliance with this policy.
The Instant Discount Policy will not be applied if you cancel your order and return the device(s) within our 30-day return period. You must return your device(s) to Amazon within the carrier's 14-day return period in order to avoid the carrier's Early Termination Fees (ETF). If your purchase was an upgrade, your upgrade eligibility will not be reset unless you return your device to Amazon within the carrier's 14-day return period."http://wireless.amazon.com/help/200364580

This Thread is more than 712 days old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose.If you still feel it is necessary to make a new reply you may do so.
I am aware that this Thread is rather old but I still want to make a reply.

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